Problem

Monitoring of air pollution and greenhouse gases (GHG) is one of the most important tasks for limiting global warming and improving human health. Ambient (outdoor) air pollution can shorten lifespans and has a strong impact on our daily lives, causing various respiratory diseases.  

Various networks of air quality and pollution monitoring stations were built worldwide. Such stations include facilities for measuring concentrations of GHG and air pollutants in surrounding air. Monitored GHGs include CO₂, CH₄, O₃, N₂O and H₂O; monitored air pollutants include NO₂, NO, SO₂, CO and NH₃. Typical air quality monitoring modules consist of several gas analyzers targeted for specific types of GHG or air pollutants. Each of these instruments is usually based on a different measurement principle. Such approach makes air quality monitoring stations bulky, immobile, difficult to operate and requires specially trained personal. To address these issues MIRO Analytical AG developed a new gas analyzer based on direct laser absorption spectroscopy that allows simultaneous measurements of all GHG and air pollutions (up to 10 gases) within a single device. 

 

MIRO MGA¹⁰ – GP product advantages

Measures up to ten gases simultaneously 

• CO, NO, NO₂, O₂, NH₃, CO₂, N₂O, H₂O, CH₄, and SO₂ compared to typical air monitoring systems that have 5-7 different instruments

No cross sensitivities 

• Direct measurements with laser absorption spectroscopy  

Compact instrument 

• Can fit everywhere for mobile and airborne measurements, weight 20 kg, can perform autonomous online monitoring 

High time resolution 

• Time-resolution with 1 Hz and 10 Hz allows to resolve rapidly changing concentrations of pollutants in the air, ideal for mobile and flux measurements. 

 

Comparison with standard methods:

• Chemiluminescence detection (CLD) for NO & NO₂ 
• Ultraviolet (UV) absorption spectroscopy for O₃ 
• Non-dispersive infrared (IR) spectroscopy for CO 
• Cavity ring-down spectroscopy (CRDS) for NH₃, H₂O, CO₂ & N₂O